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authorCharles Keepax <ckeepax@opensource.cirrus.com>2019-02-06 11:13:59 +0000
committerMark Brown <broonie@kernel.org>2019-02-06 15:42:27 +0000
commitcf17a5ffd27234371d10748bf1c716ef172877f3 (patch)
tree0a27d57f7d98d346b7c28c9f65d08e7b7d31639a /sound/soc/soc-dapm.c
parent0f747bb273790f49be4660521d86d7cebd1bbe1e (diff)
ASoC: dapm: Check for NULL widget in dapm_update_dai_unlocked
DAIs linked to the dummy will not have an associated playback/capture widget, so we need to skip the update in that case. Fixes: 078a85f2806f ("ASoC: dapm: Only power up active channels from a DAI") Reported-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Tested-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Tested-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/soc-dapm.c')
-rw-r--r--sound/soc/soc-dapm.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 5b74dffc9c11..111a23a9708a 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -2580,6 +2580,9 @@ static int dapm_update_dai_unlocked(struct snd_pcm_substream *substream,
else
w = dai->capture_widget;
+ if (!w)
+ return 0;
+
dev_dbg(dai->dev, "Update DAI routes for %s %s\n", dai->name,
dir == SNDRV_PCM_STREAM_PLAYBACK ? "playback" : "capture");